/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package io.opensharding.example.transaction.xa.raw.jdbc; import io.opensharding.example.common.service.CommonService; import io.opensharding.example.common.entity.Order; import io.opensharding.example.common.jdbc.repository.OrderItemRepositoryImpl; import io.opensharding.example.common.jdbc.repository.OrderRepositoryImpl; import io.opensharding.example.common.jdbc.service.CommonServiceImpl; import io.opensharding.example.common.service.CommonService; import org.apache.shardingsphere.shardingjdbc.api.yaml.YamlShardingDataSourceFactory; import org.apache.shardingsphere.transaction.core.TransactionType; import org.apache.shardingsphere.transaction.core.TransactionTypeHolder; import javax.sql.DataSource; import java.io.File; import java.io.IOException; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; public class YamlConfigurationTransactionExample { private static String configFile = "/META-INF/sharding-databases-tables.yaml"; // private static String configFile = "/META-INF/master-slave.yaml"; public static void main(final String[] args) throws SQLException, IOException { DataSource dataSource = YamlShardingDataSourceFactory.createDataSource(getFile(configFile)); CommonService commonService = getCommonService(dataSource); commonService.initEnvironment(); processXATransaction(dataSource, commonService); commonService.cleanEnvironment(); } private static File getFile(final String fileName) { return new File(Thread.currentThread().getClass().getResource(fileName).getFile()); } private static CommonService getCommonService(final DataSource dataSource) { return new CommonServiceImpl(new OrderRepositoryImpl(dataSource), new OrderItemRepositoryImpl(dataSource)); } private static void processXATransaction(final DataSource dataSource, final CommonService commonService) throws SQLException { TransactionTypeHolder.set(TransactionType.XA); System.out.println("------ start succeed transaction ------"); try (Connection connection = dataSource.getConnection()) { insertSuccess(connection, commonService); connection.commit(); commonService.printData(); } truncateTable(dataSource); System.out.println("------ end succeed transaction ------"); System.out.println("------ start failure transaction ------"); Connection connection = dataSource.getConnection(); try { insertSuccess(connection, commonService); throw new SQLException("exception occur!"); } catch (final SQLException ex) { connection.rollback(); } commonService.printData(); System.out.println("------ end failure transaction ------"); truncateTable(dataSource); } private static void insertSuccess(final Connection connection, final CommonService commonService) throws SQLException { connection.setAutoCommit(false); for (int i = 0; i < 10; i++) { Order order = new Order(); order.setUserId(i); order.setStatus("INIT"); insertOrder(connection, order); } commonService.printData(); } private static Long insertOrder(final Connection connection, final Order order) { String sql = "INSERT INTO t_order (user_id, status) VALUES (?, ?)"; try (PreparedStatement preparedStatement = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS)) { preparedStatement.setInt(1, order.getUserId()); preparedStatement.setString(2, order.getStatus()); preparedStatement.executeUpdate(); try (ResultSet resultSet = preparedStatement.getGeneratedKeys()) { if (resultSet.next()) { order.setOrderId(resultSet.getLong(1)); } } } catch (final SQLException ignored) { } return order.getOrderId(); } private static void truncateTable(final DataSource dataSource) { OrderRepositoryImpl orderRepository = new OrderRepositoryImpl(dataSource); orderRepository.truncateTable(); } }